Yes, forex trading when ever gives us too much profit, some traders have felt excessive confidence so forex trading is a business where overconfidence can be a cause of loss in forex trading in the same way forex traders do not have the desire to make profits and make him dollars in a good way. Successful profits can make a trader overconfident and he thinks that he knows everything and that when the reality occurs when he starts increasing the lot size and then he loses all that he got before because he chose to abandon all the trading rules because he was too confident self.